Combined heat and moisture exchanger for respiratory mask



FIG. 1 is a front perspective view of a combined heat and moisture exchanger for respiratory mask showing a first embodiment of our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a right side elevation view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a front perspective view of a combined heat and moisture exchanger for respiratory mask showing a second embodiment of our new design;

FIG. 10 is a front elevation view thereof;

FIG. 11 is a rear elevation view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a left side elevation view thereof;

FIG. 15 is a right side elevation view thereof; and,

FIG. 16 is a right side view thereof.

The broken lines represent environmental structure and do not form part of the claimed design. 

CLAIM The ornamental design for a combined heat and moisture exchanger for respiratory mask, as shown and described. 